| 摘要 |
<p>The present invention relates to a device (1) for focusing and blending a laser beam (2) on a work surface (3), the said device (1) comprising a pair of concave mirrors (8, 9), the first (8) of which reflects the incident laser beam towards the second (9) which, in turn, directs the beam (2) towards the said work surface. Furthermore, each mirror (8, 9) is turned by a respective motor (14, 15) round an axis other than the axis of symmetry of the mirror (8, 9) itself.</p> |
